// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef CONTENT_RENDERER_RENDER_WIDGET_FULLSCREEN_PEPPER_H_
#define CONTENT_RENDERER_RENDER_WIDGET_FULLSCREEN_PEPPER_H_

#include <stdint.h>

#include <memory>

#include "base/macros.h"
#include "content/renderer/mouse_lock_dispatcher.h"
#include "content/renderer/pepper/fullscreen_container.h"
#include "content/renderer/render_widget.h"
#include "third_party/WebKit/public/web/WebWidget.h"
#include "url/gurl.h"

namespace blink {
class WebLayer;
}

namespace content {
class CompositorDependencies;
class PepperPluginInstanceImpl;

// A RenderWidget that hosts a fullscreen pepper plugin. This provides a
// FullscreenContainer that the plugin instance can callback into to e.g.
// invalidate rects.
class RenderWidgetFullscreenPepper : public RenderWidget,
                                     public FullscreenContainer {
public:
    static RenderWidgetFullscreenPepper* Create(
        int32_t routing_id,
        const RenderWidget::ShowCallback& show_callback,
        CompositorDependencies* compositor_deps,
        PepperPluginInstanceImpl* plugin,
        const GURL& active_url,
        const ScreenInfo& screen_info);

    // pepper::FullscreenContainer API.
    void Invalidate() override;
    void InvalidateRect(const blink::WebRect& rect) override;
    void ScrollRect(int dx, int dy, const blink::WebRect& rect) override;
    void Destroy() override;
    void PepperDidChangeCursor(const blink::WebCursorInfo& cursor) override;
    void SetLayer(blink::WebLayer* layer) override;

    // RenderWidget overrides.
    bool OnMessageReceived(const IPC::Message& msg) override;

    // Could be NULL when this widget is closing.
    PepperPluginInstanceImpl* plugin() const { return plugin_; }

    MouseLockDispatcher* mouse_lock_dispatcher() const
    {
        return mouse_lock_dispatcher_.get();
    }

protected:
    RenderWidgetFullscreenPepper(int32_t routing_id,
        CompositorDependencies* compositor_deps,
        PepperPluginInstanceImpl* plugin,
        const GURL& active_url,
        const ScreenInfo& screen_info);
    ~RenderWidgetFullscreenPepper() override;

    // RenderWidget API.
    void DidInitiatePaint() override;
    void Close() override;
    void OnResize(const ResizeParams& params) override;

    // RenderWidget overrides.
    GURL GetURLForGraphicsContext3D() override;
    void OnDeviceScaleFactorChanged() override;

private:
    // URL that is responsible for this widget, passed to ggl::CreateViewContext.
    GURL active_url_;

    // The plugin instance this widget wraps.
    PepperPluginInstanceImpl* plugin_;

    blink::WebLayer* layer_;

    std::unique_ptr<MouseLockDispatcher> mouse_lock_dispatcher_;

    DISALLOW_COPY_AND_ASSIGN(RenderWidgetFullscreenPepper);
};

} // namespace content

#endif // CONTENT_RENDERER_RENDER_WIDGET_FULLSCREEN_PEPPER_H_
